Web Developers who work smart are often building on top of pre-existing frameworks. Open source CSS libraries are not hard to find – including many of the newer CSS3 effects. When structuring an HTML page you’ll rely on CSS as the language of color, position, structure, and other components of the final layout.

This gallery includes 28 free open source frameworks you can try out when designing new projects. You’ll find a number of CSS grid systems along with extra goodies like CSS UI kits or transition libraries. It’s never been easier to learn how to build websites from scratch. Open source code is changing the way we structure projects and how much development time is required.

Responsive Grid System

css responsive grid system web design article

Profound Grid

css profound grid framework homepage

Responsive.gs

css responsive grid system homepage website

Pure CSS

pure library css ui elements effects buttons

Workless

workless css framework library design

Twitter Bootstrap

twitter bootstrap open source library css

Skeleton

skeleton boilerplate css library framework

960 Grid System

960px pixels grid system framework

Columnal

columnal css library columns free open source

Blueprint

blueprint css library homepage layout

Toast

toast css framework homepage library

Kube

kube professional css framework open source

Topcoat

topcoat css framework clean webapps open source

InK

ink css interface kit website

Animate.css

css transition animate library freebie

Gumby

gumby css framework homepage design

UIkit

css freebie ui kit homepage library

Amazium

amazium responsive css framework library

Cascade Framework

css cascading styles library framework open source

Print.css

print css stylesheet open source free download

Metro UI CSS

metro ui interface css library flat

Tuktuk

tuktuk simple powerful css framework library

Clank

clank mobile tablet css framework open source

Ivory

css ivory framework open source web design

Jeet Framework

framework library css open source jeet design

Baseline CSS

baseline css web design inspiration framework

Flaminwork

flaminwork design css framework inspiration

Foundation

css foundation zurb most advanced responsive frontend framework

Posted by Jake Rocheleau

Jake is a writer & digital designer/illustrator. He writes about all things web and creative. Check out his website for work samples and follow his latest updates on Twitter @jakerocheleau.

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